JP6709716B2 - Discharge container - Google Patents

Description

The present invention relates to a discharge container.

Conventionally, there is known a discharge container in which an unintentional rotation operation of a push-down head located at a descending end position is prevented.
For example, the discharge container disclosed in Patent Document 1 below includes a pressing head mounted on the upper end of the stem and screwed to the stem insertion tube at the lower end position, a mouth of the container body, a mounting cap and a pressing head. And a cylindrical cover body surrounding from the outside.
The cover body is mounted by fitting the engaging projection formed at the mouth of the container body into the fitting hole with the nozzle cylinder of the pressing head inserted through the vertically long window hole. There is. The removal piece is connected to the cover body through a weakened portion that can be broken. This makes it possible to remove the cover body by breaking the weakened portion and removing the removal piece so as to be removed from the cover body.

In the discharge container configured in this manner, the cover body is used to prevent the push-down head located at the lower end position from being inadvertently rotated. It is prevented that it is canceled without it. Therefore, for example, when the product is distributed or when it is not used, it is possible to determine whether or not it has been opened depending on the presence or absence of the cover body.

JP, 2006-89110, A

However, in the above-mentioned conventional discharge container, it is easy to assemble, and there is a problem in assembling workability.
For example, when assembling a discharge container, a unit that has been assembled in advance with the pressing head screwed onto the stem insertion tube is attached to the container body filled with the contents via the attachment cap. To do. After that, the cover body is mounted so as to cover the push-down head while passing the nozzle cylinder through the window hole, and the cover body is attached by engaging the engagement protrusion on the container body side in the fitting hole.

In this way, it is necessary to engage the engaging projections into the fitting holes after the cover body is once covered with the pressing head while avoiding interference with the nozzle cylinder. Complex work is required. Therefore, it takes time and effort to assemble the discharge container, and it is easy to increase the number of assembly steps.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a discharge container which is capable of determining whether or not it has been opened and which has excellent assembling workability. Is.

(1) The discharge container according to the present invention is capable of moving downward inside the container body in which the contents are stored, the mounting cap mounted at the mouth of the container body, and the inside of the mounting cap in an upwardly biased state. A pump having a stem inserted through, a pressing head mounted on the upper end of the stem and having a discharge hole for discharging contents, and the pressing head located at the descending end position is screwed on, A restricting cylinder that restricts upward movement of the pressing head and the stem, and a cover body that covers the pressing head, and any one member of the mouth of the container body, the mounting cap, and the restricting cylinder. Is provided with a ring body that surrounds the member from the outside in the radial direction and is connected to the member via a rupturable first weakening portion, and the cover body holds the pressing head from the outside in the radial direction. a cover tube which surrounds the cover cylinder has a lower end portion is secured from above against the ring body.

According to the discharge container of the present invention, since the cover body covers the pressing head by surrounding the pressing head from the radial outside by the cover cylinder, the pressing head is rotated in the loosening direction before the cover body is removed. It is possible to prevent it. If the pressing head together with the cover body is rotated in the loosening direction, the ring body fixed to the cover cylinder rotates together with the cover body, so that stress acts on the first weakened portion and the first weakened portion. The part breaks.
Therefore, by visually observing not only the presence or absence of the cover body but also the presence or absence of breakage of the first weakened portion, it is possible to easily determine whether or not the pressing head is loosely screwed and opened when the product is distributed or unused, for example. Can be determined.

When using the discharge container, for example, an external force is applied to lift the cover body upward, and the cover body is pulled away from the pressing head while breaking the first weakened portion. When the first weakened portion is broken, the ring body can be separated from any one of the mouth portion of the container body, the mounting cap, and the regulation tube, and the cover body can be removed together with the ring body. As a result, the pressing head can be rotated in the loosening direction with respect to the restriction cylinder, and the screwing of the pressing head with respect to the restriction cylinder can be released. Therefore, the push head can be moved from the lower end position to the upper end position, and the push head can be moved to a state in which it can be pushed down. As a result, the contents can be discharged.

When the cover body is attached when assembling the discharge container, the push-down head is screwed onto the regulation tube to be positioned at the lower end position, and then the cover body is put on the push-down head from above. The lower end portion of the cover cylinder is fixed to the ring body while being combined with. Thereby, the pressing head can be covered with the cover body, and the assembling work of the discharge container can be completed.
In particular, until the push-down head is located at the lower end position, for example, the existing assembling/manufacturing apparatus can be used for assembly, and then the cover body is simply put on the push-down head and fixed to the ring body. The discharge container can be assembled by performing only a simple operation (attachment operation of the cover body). Therefore, easy assembly can be performed, and an increase in the number of assembly steps can be suppressed.

(2) The cover body includes a cover cap that closes an upper end opening of the cover cylinder and covers a top wall portion of the pressing head from above, and the stem is provided between the cover cap and the top wall portion. There may be a constant gap in the direction of the central axis of the.

In this case, since the cover body covers the push-down head from the radial outside and the upper side, it is possible to effectively prevent the push-down head from being loosened before the cover body is removed. Further, since the cover body covers and protects the entire pressing head, it is difficult for dust or the like to adhere to the ejection holes, and the pressing head can be maintained more cleanly.
Furthermore, when the first weakened portion is broken, the cover body descends (falls) together with the ring body by at least a certain gap. Therefore, the relative positional relationship of the cover body with respect to the pressing head can be made different from that in the state before the first weakened portion is broken. Therefore, based on the change in the relative positional relationship of the cover body with respect to the pressing head, it is possible to more easily determine whether or not the pressing head is loosely screwed and opened.
In addition, after the first weakened portion is broken, for example, even if the cover body is once removed, the push head is operated, and then the cover body is reattached, the above-mentioned gap cannot be secured. It will be in contact with the part. Therefore, by comparing with the position of the cover body in another discharge container in which the first weakened portion is not broken, it is possible to easily determine whether or not the pressing head is loosely screwed and opened.

(3) The pressing head includes a discharge nozzle that protrudes outward in the radial direction and has the discharge hole formed at the tip, and the ring body has a rupturable second weakened portion. May be separable in the circumferential direction by breaking the second weakened portion.

In this case, since the ring body can be divided in the circumferential direction by breaking the second weakened portion, when removing the cover body together with the ring body, it is possible to remove the cover body while suppressing interference of the ring body with the discharge nozzle. Therefore, the work of removing the cover body can be easily performed, and the cover body can be removed without being affected by the presence or absence of the discharge nozzle. Therefore, it is possible to deal with various pressing heads and improve convenience.

(4) The ring body may surround the restriction cylinder from the outside in the radial direction and may be connected to the restriction cylinder via the first weakening portion.

In this case, since the ring body is connected to the regulation tube via the first weakening portion, the discharge container can be easily assembled.
That is, it is possible to previously combine the restricting cylinder integrally formed with the ring body via the first weakening portion, the mounting cap, the pump, and the pressing head. Then, after that, the pressing head is moved downward so as to push down the stem, and the pressing head is screwed onto the regulating cylinder, so that the mounting cap, the pump, and the regulating cylinder are held in the state where the pressing head is held at the lower end position. And the pressing head can be combined together. Then, the flange piece is fixed to the ring body while the cover body is assembled so as to cover the pressing head from above, so that a unit in which the cover body is further combined can be obtained.
Therefore, by filling the contents into the container body and then attaching the mounting cap to the mouth portion of the container body, the above unit can be integrally combined with the container body, and the discharge container can be assembled. it can.

As described above, since the discharge container can be assembled only by assembling the above unit in which the cover body is combined with the container body, the assembly process after filling the contents can be minimized, and the assembly can be performed easily. It will be easy. Further, since the above-mentioned unit can be assembled with high precision, for example, on the manufacturer side, the user who has obtained the unit and the container body can also perform the final assembly of the discharge container.

According to the present invention, it is possible to determine whether or not it has been opened, and it is possible to provide a discharge container having excellent assembly workability.

It is a semi-longitudinal sectional view showing a first embodiment of a discharge container according to the present invention. It is a semi-longitudinal sectional view which expanded the pressing head and the cover body periphery shown in FIG. It is a top view of the discharge container shown in FIG. It is sectional drawing which followed the AA line shown in FIG. It is the expansion perspective view which partially expanded the ring body shown in FIG. It is a figure which shows the state which the ring body and the cover body descended from the state shown in FIG. It is a top view which shows the modification of the discharge container shown in FIG. It is a semi-longitudinal sectional view showing a second embodiment of a discharge container according to the present invention. It is a top view of the discharge container shown in FIG.

(First embodiment)
Hereinafter, a first embodiment of a discharge container according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the discharge container 1 according to the present embodiment includes a bottomed cylindrical container body 2 in which contents are stored, and a cylindrical mounting cap 10 mounted in an opening 5 of the container body 2. Inside the mounting cap 10, a pump 12 having a stem 11 that is inserted so as to be able to move downward in an upwardly biased state, and a discharge hole 13 that is mounted on the upper end of the stem 11 and discharges the contents are formed. The pressing head 14 and the pressing head 14 located at the descending end position P1 are screwed together to restrict the upward movement of the pressing head 14 and the stem 11, and a cover body 16 that covers the pressing head 14. , Are provided.

The stem 11 and the pressing head 14 are located at the descending end position P1 at least when they are not used (unopened), and the pressing head 14 is held by the restricting cylinder 15 by being screwed to restrict the upward movement. It is said that the On the other hand, in the use stage, the screwing is released by rotating the pressing head 14 with respect to the regulating cylinder 15. As a result, the push-down head 14 is positioned at the rising end position P2 together with the stem 11, and shifts to the standby state for pushing.

The container body 2, the mounting cap 10, the stem 11, the pressing head 14, and the restriction cylinder 15 are arranged with their central axes located on a common axis. In the present embodiment, this common axis is called the container axis O, the pressing head 14 side along the container axis O is the upper side, and the bottom side of the container body 2 is the lower side.
Further, in a plan view seen from the container axis O direction, a direction orthogonal to the container axis O is called a radial direction, and a direction rotating around the container axis O is called a circumferential direction. Further, in the circumferential direction, a direction in which the container axis O rotates clockwise in a top view of the discharge container 1 is referred to as a first rotation direction M1, and an opposite side thereof is referred to as a second rotation direction M2.

The container body 2 is formed into a bottomed cylinder having a bottom, a body 3, a shoulder 4 and a mouth 5 which are not shown. In the illustrated example, the upper end portion of the body portion 3 is formed so as to gradually increase in diameter toward the connecting portion with the shoulder portion 4, and the shoulder portion 4 is formed to project radially outward.
However, the shape of the container body 2 is not limited to this case. Further, the shape of the body portion 3 may be, for example, a circular shape in cross section, an elliptical shape, or a polygonal shape, and is not limited to a particular shape.

A first screw portion 6 to which the mounting cap 10 is screwed is formed on the outer peripheral surface of the mouth portion 5. The first screw portion 6 is formed in a spiral shape so that the mounting cap 10 is tightened when the mounting cap 10 is relatively rotated in the first rotation direction M1 with respect to the container body 2. Therefore, the second rotation direction M2 is the loosening direction of the mounting cap 10.

On the outer peripheral surface of the mouth portion 5, an annular protrusion 7 is formed at a portion located below the first screw portion 6 so as to project radially outward. The annular protrusion 7 is located above the connecting portion between the mouth portion 5 and the shoulder portion 4.

The pump 12 is held by the mounting cap 10 in a state of being inserted into the mouth portion 5 of the container body 2 and the cylinder 11 in which the stem 11 is erected upward, and is linked to the stem 11. A piston (not shown) fitted in the cylinder 20 so as to be vertically slidable is also provided.

The cylinder 20 is arranged coaxially with the container axis O, and is formed in a multistage tubular shape in which the diameter is gradually reduced from the upper side to the lower side.
A flange portion 21 that projects outward in the radial direction is formed in an upper end portion of the cylinder 20 in an annular shape over the entire circumference of the cylinder 20. The flange portion 21 is arranged on the upper end opening edge of the mouth portion 5 of the container body 2 via the packing 22. Thereby, the cylinder 20 is supported in a state of being inserted into the mouth portion 5 of the container body 2.

In the cylinder 20, a projecting cylinder portion 23 extending upward from the inner peripheral edge portion of the flange portion 21 is formed coaxially with the container axis O, and the container body 2 is provided in a portion located below the flange portion 21. An air hole 24 that communicates the inside with the inside of the cylinder 20 is formed. At the lower end of the cylinder 20, a suction cylinder portion 25 extending downward is formed simultaneously with the container axis O. A tube body 26 for sucking up the contents is fitted in the suction cylinder portion 25.

Inside the cylinder 20, a valve member (not shown) that opens and closes the lower end opening of the cylinder 20 and a coil spring (not shown) that biases the stem 11 upward are disposed.

The valve member is arranged so as to be located above the tube body 26. The valve member is a check valve that keeps the lower end opening of the cylinder 20 closed when the cylinder 20 is pressurized and opens the lower end opening of the cylinder 20 when the cylinder 20 is depressurized.
Accordingly, when the pressure in the cylinder 20 is increased, the content in the cylinder 20 is restricted from returning to the inside of the container body 2 through the lower end opening of the cylinder 20, and the content in the container body 2 is reduced when the pressure in the cylinder 20 is reduced. Are allowed to flow into the cylinder 20 through the lower end opening of the cylinder 20.

The piston is closely slid on the inner peripheral surface of the cylinder 20 and moves up and down in the cylinder 20 along with the stem 11. The coil spring is arranged, for example, between the piston and the valve member, and biases the stem 11 upward via the piston. In the cylinder 20, an annular space that is defined between the stem 11 and the cylinder 20 and communicates with the air hole 24 is formed.

The mounting cap 10 is disposed below the cap body 30 and a cap body 30 formed in a capped cylinder shape having a cap barrel 31 and an annular top wall portion 32 continuously provided at the upper end of the cap barrel 31. A sealing ring 40 connected to the cap body 30 via a breakable connection weakening portion 41.

The cap cylinder 31 surrounds a portion of the mouth portion 5 of the container body 2 located above the annular projection 7 from the outside in the radial direction. On the inner peripheral surface of the cap cylinder 31, a second screw portion 33 that is screwed to the first screw portion 6 formed on the mouth portion 5 of the container body 2 is formed.

The top wall portion 32 is arranged on the flange portion 21 of the cylinder 20. As a result, the cylinder 20 is held by the mounting cap 10 and is prevented from coming out upward. The protruding cylinder portion 23 of the cylinder 20 is inserted inside the ceiling wall portion 32.

The sealing ring 40 includes a ring body 42 that surrounds the annular projection 7 and a portion of the mouth portion 5 of the container body 2 that is located below the annular projection 7 from the outside in the radial direction, and a radial direction from the inner peripheral surface of the ring body 42. A plurality of projecting pieces 43 that project inward and are formed at intervals in the circumferential direction are provided.

The ring body 42 surrounds the mouth portion 5 of the container body 2 with a gap formed between the ring body 42 and the annular projection 7. In the illustrated example, the ring main body 42 is formed in a tapered shape in cross section whose diameter gradually increases from the upper side to the lower side.

The connection weakening portion 41 is formed between the upper end opening edge of the ring body 42 and the lower end opening edge of the cap tube 31, and integrally connects the ring body 42 and the cap tube 31 in the container axis O direction. In the example shown in the figure, the plurality of connection weakening portions 41 are formed at intervals in the circumferential direction, and are formed such that the thickness along the radial direction gradually decreases from the sealing ring 40 side toward the upper side, and The circumferential width along the circumferential direction is formed to be gradually narrow.
As a result, the connection weakening portion 41 has a structure in which the connecting portion between the connection weakening portion 41 and the cap body 30 is easily broken. However, the shape of the connection weakening portion 41 is not limited to this case.

The protruding piece 43 is formed so as to protrude radially inward from the lower end portion side of the ring main body 42, and to extend gradually upward toward the radially inner side. The outer end of the projection piece 43 is engaged with the annular projection 7 formed in the mouth 5 of the container body 2 from below. As a result, the sealing ring 40 surrounds the mouth portion 5 of the container body 2 in a state where the sealing ring 40 is prevented from coming off upward.

Therefore, when the mounting cap 10 is rotated in the second rotation direction M2, which is the loosening direction, with respect to the mouth portion 5 of the container body 2, the upward movement of the sealing ring 40 is restricted, so that the mounting cap 10 of the mounting cap 10 is prevented. With the rotation, the cap body 30 can be gradually separated upward from the sealing ring 40. Therefore, stress (a stress that extends in the container axis O direction) can be applied to the connection weakening portion 41, and the connection weakening portion 41 can be broken.

As shown in FIGS. 1 and 2, the restricting cylinder 15 includes an outer cylinder 50 fitted (for example, undercut fitting) to the protruding cylinder part 23 of the cylinder 20, and an inner cylinder arranged inside the protruding cylinder part 23. A cylinder 51, an outer cylinder 52 surrounding the outer cylinder 50 from the outside in the radial direction, an upper end of the outer cylinder 52 and an upper end of the outer cylinder 50 are connected in the radial direction, and the inner end thereof is connected to the inner cylinder 51. And a ring-shaped connecting plate 53 that is formed.
The restriction cylinder 15 may be a constituent member that configures the mounting cap 10 or the pump 12, or may be a constituent member that is separate from the mounting cap 10 and the pump 12.

The inner cylinder 51 is formed so as to protrude above the protruding cylinder portion 23, and the lower end portion thereof is fitted inside the upper end portion of the cylinder 20. On the outer peripheral surface of the outer peripheral surface of the inner cylinder 51 located below the connecting plate 53, and on the inner peripheral surface of the protruding cylinder portion 23, there are separately provided longitudinal locking ribs that engage with each other in the circumferential direction. Has been formed.

A third screw portion 54 to which the push-down head 14 located at the descending end position P1 is screwed is formed on a portion of the outer peripheral surface of the inner cylinder 51 located above the connecting plate 53. The third screw portion 54 is formed in a spiral shape so that the pressing head 14 is tightened when the pressing head 14 is relatively rotated with respect to the restriction cylinder 15 in the first rotation direction M1.
The outer cylinder 52 is formed in a cylindrical shape having a smaller diameter than the cap cylinder 31 of the mounting cap 10, and has a length that does not reach the top wall portion 32 of the mounting cap 10 from the outer peripheral edge portion of the connecting plate 53. It extends downward.

Inside the inner cylinder 51, a seal cylinder 55 that closes the air holes 24 of the cylinder 20 is arranged. At the lower end of the seal cylinder 55, a closed cylinder (not shown) slidably fitted in the cylinder 20 is formed.
The closing cylinder closes the air hole 24 when the push-down head 14 and the stem 11 are located at the descending end position P1 and the push-down head 14 is screwed to the regulating cylinder 15. When the push-down head 14 and the stem 11 are located at the rising end position P2, for example, the closing cylinder is pushed up from below by the piston to separate from the air hole 24, and then the piston closes the air hole 24.

The stem 11 is arranged inside the seal cylinder 55 so as to be vertically movable. An annular communication passage is defined between the outer peripheral surface of the stem 11 and the inner peripheral surface of the seal cylinder 55 to communicate the above-mentioned annular space communicating with the air hole 24 with the outside. However, the seal cylinder 55 is not essential and may not be provided.

The pressing head 14 includes a top wall portion 60 having a circular shape in a plan view, a head cylinder 61 extending downward from an outer peripheral edge portion of the top wall portion 60, and a restriction cylinder 15 extending downward from the top wall portion 60. A top tube having a threaded tube 62 that is screwed to the inner tube 51, and a fitting tube 63 that extends downward from the central portion of the top wall portion 60 and that is fitted inside the stem 11. It is formed into a shape.

The head cylinder 61 is formed with a discharge nozzle 64 that projects outward in the radial direction and has the discharge hole 13 formed at the tip thereof.
In the illustrated example, the discharge nozzle 64 is formed so that the circumferential width along the circumferential direction becomes gradually narrower toward the radially outer side. The discharge nozzle 64 is formed so as to be integrated with the top wall portion 60, extends inside the head cylinder 61, and is integrally connected to the fitting cylinder 63. As a result, the inside of the discharge nozzle 64 communicates with the inside of the stem 11 through the inside of the fitting cylinder 63.
However, the shape of the discharge nozzle 64 is not limited to the above case.

A fourth screw portion 65 screwed to the third screw portion 54 formed on the inner cylinder 51 of the regulation cylinder 15 is formed on the inner peripheral surface of the screw cylinder 62. The pressing head 14 and the stem 11 are held at the descending end position P1 and their upward movement is restricted by screwing the fourth screw portion 65 onto the third screw portion 54.
The lower end of the threaded cylinder 62 comes into contact with the connecting plate 53 of the restriction cylinder 15 from above to complete the tightening of the pressing head 14 with respect to the restriction cylinder 15.

A plurality of vertical ribs 66 extending along the container axis O direction are formed at intervals in the circumferential direction on a portion of the outer peripheral surface of the fitting cylinder 63 located above the stem 11. The lower end edge of the vertical rib 66 is in contact with the upper end opening edge of the stem 11 from above. Further, the seal cylinder 55 is pushed down from above by the vertical rib 66 when the push-down head 14 is located at the descending end position P1.

The head cylinder 61 is formed in a cylindrical shape having a larger diameter than the outer cylinder 52 of the restriction cylinder 15 and a smaller diameter than the cap cylinder 31 of the mounting cap 10, and is arranged above the outer cylinder 52. As a result, a constant gap is secured between the lower end of the head cylinder 61 and the top wall portion 32 of the mounting cap 10 in the container axis O direction.

As shown in FIGS. 2 and 3, the cover body 16 includes a cover cylinder 70 that surrounds the pressing head 14 from the outside in the radial direction, and a cover cap 71 that closes the upper end opening of the cover cylinder 70. It is formed into a shape.
The cover body 16 is, for example, a molded product formed by injection molding or compression molding of a molten resin, or a molded product formed by vacuum molding or press molding of a resin sheet.

The cover cylinder 70 is formed along the outer shape of the head cylinder 61 and the discharge nozzle 64 so as to surround the head cylinder 61 and the discharge nozzle 64 from the outside in the radial direction. A flange piece 72 protruding outward in the radial direction is formed at the lower end of the cover cylinder 70. In the illustrated example, the flange piece 72 is formed over the entire circumference of the cover cylinder 70. However, the present invention is not limited to this case, and the flange piece 72 is provided at the lower end portion of at least the portion of the cover cylinder 70 that surrounds the head cylinder 61 from the radial outside, and is provided with respect to the ring body 80 described later. It only needs to overlap. In particular, the flange piece 72 may be formed so as to correspond to at least the fixing area 82 described later.
The lower surface of the flange piece 72 is substantially flush with the lower end opening edge of the head cylinder 61. However, the flange piece 72 may be located below the lower end of the head cylinder 61.

The cover cap 71 covers the top wall portion 60 and the discharge nozzle 64 of the push-down head 14 over the entire area from above, and is curved according to the curve of the top wall portion 60 and the upper surface of the discharge nozzle 64. ..

The cover body 16 configured in this manner is fixed from above to the ring body 80 that is integrally connected to the regulation cylinder 15, and thereby the pressing head 14 is radially outwardly positioned in the container axis O direction. And covers from above.
At this time, the cover body 16 covers the pressing head 14 in a state where a certain gap is opened in the container axis O direction between the cover cap 71 and the top wall portion 60 of the pressing head 14.

As shown in FIGS. 2 to 4, the ring body 80 surrounds the upper end of the outer cylinder 52 of the restriction cylinder 15 from the outside in the radial direction. As a result, a constant gap is secured in the container axis O direction between the ring body 80 and the top wall portion 32 of the mounting cap 10.
The ring body 80 is formed so that the inner diameter thereof is the same as the outer diameter of the head cylinder 61, whereby an annular gap is formed between the ring body 80 and the outer cylinder 52. The outer diameter of the ring body 80 is the same as the outer diameter of the flange piece 72 that surrounds the head cylinder 61 among the flange pieces 72 of the cover body 16. As a result, the ring body 80 faces the flange piece 72 surrounding the head cylinder 61 from below.

The thickness of the ring body 80 is not particularly limited, but in the illustrated example, the thickness is about half the ring width of the ring body 80 along the radial direction.
The thickness of the ring body 80 is preferably thick from the viewpoint of increasing the mechanical strength and supporting the cover body 16 stably, but the flexibility and the easiness of breaking the second weakened portion 83 described later are improved. From the standpoint of doing so, the thinner one is preferable.

The ring body 80 configured in this way is integrally connected to the outer casing 52 of the regulation barrel 15 via the first weakening portion 81.
The first weakening portion 81 is arranged in an annular gap formed between the ring body 80 and the outer casing 52, and integrally connects the outer peripheral surface of the outer casing 52 and the inner peripheral surface of the ring body 80 in the radial direction. doing. The ring body 80 and the first weakened portion 81 are formed integrally with the restriction cylinder 15.

A plurality of the first weakening portions 81 are formed at intervals in the circumferential direction, and along the circumferential direction from the radially outer side toward the radially inner side (from the ring body 80 side toward the outer cylinder 52 side). It is formed so that the circumferential width becomes gradually narrower.
As a result, the first weakened portion 81 has a structure in which the connecting portion between the first weakened portion 81 and the outer shell 52 is easily broken.

However, the shape of the first weakened portion 81 is not limited to this case, and the first weakened portion 81 may be formed so that the thickness gradually decreases from the radially outer side toward the radially inner side. In this case, the first weakened portion 81 may be formed so that the thickness is gradually thinned in place of the above-described change in the circumferential width, or the thickness may be gradually thinned in addition to the change in the circumferential width.
Furthermore, the first weakened portion 81 is not limited to the above-described case, and may be a weakened line in which a thin portion is formed over the entire circumference of the ring body 80, for example.

The cover body 16 overlaps the ring body 80 from above via the flange piece 72. Since the flange piece 72 is formed over the entire circumference of the cover cylinder 70 that surrounds the head cylinder 61 and the discharge nozzle 64 from the outside in the radial direction with respect to the ring body 80 formed in an annular shape, the flange piece 72 is formed. Only a part of the flange pieces 72, which surround the head cylinder 61, of 72, overlap the ring body 80.

The flange piece 72 and the ring body 80 are fixed and integrated with each other.
In the illustrated example, the flange piece 72 and the ring body 80 extend in an arc shape along the circumferential direction, and are fixed to each other via the fixing regions 82 that are arranged symmetrically in the radial direction with the container axis O interposed therebetween. There is.
The method of fixing the flange piece 72 and the ring body 80 may be, for example, welding such as heat welding, bonding using an adhesive, fixing using ultrasonic waves, or the like, but is not particularly limited. It may be fixed by a known method.

Further, the ring body 80 is formed with a rupturable second weakened portion 83. The ring body 80 is separable in the circumferential direction by breaking the second weakened portion 83.
As shown in FIGS. 3 to 5, the second weakened portion 83 is, for example, a thin portion in which the thickness of the ring body 80 is formed thinner than the thickness of other portions, and a plurality of second weakened portions 83 are formed at intervals in the circumferential direction. ing.

In the illustrated example, the second weakening portions 83 are provided at five locations at equal intervals in the circumferential direction, and at least one of the second weakening portions 83 is a portion of the ring body 80 located below the discharge nozzle 64. It is configured to be placed in. Here, the portion located below the discharge nozzle 64 means a non-overlapping portion of the ring body 80 that does not overlap the flange piece 72 of the cover body 16, and the relative circumference of the ring body 80 and the cover body 16. Regardless of the directional position, it is preferable to determine the number and the interval so that at least one second weakening portion 83 is located in the non-overlapping portion.
However, the number of the second weakened portions 83, the interval between the second weakened portions 83 that are adjacent to each other in the circumferential direction, and the like are not limited to those described above, and may be appropriately changed.

As shown in FIG. 5, the second weakened portion 83 is formed by forming a groove portion 84 that extends in the radial direction on the upper surface side of the ring body 80, and is located on the lower surface side of the ring body 80. .. The thickness of the second weakened portion 83 is approximately the same as the thickness of the first weakened portion 81, for example.
However, the present invention is not limited to this case, and the second weakened portion 83 may be provided on the upper surface side of the ring body 80 by forming the groove portion 84 on the lower surface side of the ring body 80, for example. The second weakened portion 83 may be provided by forming the groove portion 84 on both the upper surface side and the lower surface side, or the second weakened portion 83 may be thinner than the first weakened portion 81.

(Function of discharge container)
Next, the operation of the discharge container 1 configured as described above will be described. First, the case of assembling the discharge container 1 shown in FIG. 1 will be briefly described.

In this case, first, the mounting cap 10 and the cylinder 20 are combined, and the restriction cylinder 15 and the cylinder 20 integrally formed with the ring body 80 via the first weakening portion 81 are combined. Next, the fitting cylinder 63 of the pressing head 14 is fitted into the upper end portion of the stem 11 to further combine the pressing head 14. Next, the pressing head 14 is moved downward so as to press down the stem 11, and the pressing head 14 is rotated in the first rotation direction M1 with respect to the restriction cylinder 15 to move the fourth screw portion 65 to the third screw portion 54. Screw it on.
Accordingly, the mounting cap 10, the pump 12, the restricting cylinder 15, and the pressing head 14 can be integrally combined with each other while the pressing head 14 is held at the lower end position P1.

Next, the flange piece 72 is fixed to the ring body 80 while the cover body 16 is assembled so as to cover the pressing head 14 from above.
As a result, the cover body 16 can be further combined with the mounting cap 10, the pump 12, the restricting cylinder 15, and the pressing head 14 that have already been combined, and a unit in which these are integrally combined can be obtained.

Next, after filling the container body 2 with the contents, the mounting cap 10 is mounted on the mouth portion 5 of the container body 2 to integrally combine the above unit with the container body 2.
Specifically, the mounting cap 10 is screwed to the mouth portion 5 of the container body 2 by rotating the mounting cap 10 in the first rotation direction M1 with respect to the mouth portion 5 of the container body 2. As a result, the discharge container 1 can be assembled.

When the mounting cap 10 is mounted, the protruding piece 43 of the sealing ring 40 rides over the annular projection 7 formed on the opening 5 of the container body 2 from above and then locks the annular projection 7 from below. As a result, after the mounting cap 10 is mounted, the sealing ring 40 is restricted from moving upward.

In particular, until the push-down head 14 is located at the descending end position P1, it is possible to carry out the assembly using, for example, the existing assembling and manufacturing apparatus. Then, in the subsequent mounting work of the cover body 16, the cover body 16 can be attached by a simple work of simply fixing the cover body 16 to the pressing head 14 and fixing it to the ring body 80.
Therefore, the discharge container 1 can be easily assembled, and an increase in the number of assembling steps can be suppressed. Therefore, the discharge container 1 having excellent assembling workability can be obtained.

Next, the case of using the discharge container 1 will be described.
In the discharge container 1 of the present embodiment, as shown in FIG. 1, when the pressing head 14 and the stem 11 are located at the descending end position P1, the cover body 16 is attached, so before removing the cover body 16. Further, it is possible to prevent the pressing head 14 from being rotationally operated in the second rotation direction M2 (loosening direction).

If the pressing head 14 together with the cover body 16 is rotated in the second rotation direction M2, the ring body 80 fixed to the cover cylinder 70 rotates together with the cover body 16, and thus the first weakening portion. The first weakened portion 81 is broken due to the stress acting on 81.
Therefore, by visually observing not only the presence or absence of the cover body 16 but also the presence or absence of breakage of the first weakened portion 81, it is possible to determine whether or not the pressing head 14 is loosely screwed and opened. Therefore, for example, when the product is distributed or when it is not used, it is possible to exclude the discharge container 1 which is opened by loosening the screwing of the pressing head 14.

In particular, when the first weakened portion 81 is broken, as shown in FIG. 6, the outer casing 52 and the ring body 80 are separated, so that the cover body 16 and the ring body 80 are the tops of the cover cap 71 and the pressing head 14. Only the gap with the wall 60 is lowered (falls) as shown by an arrow B in FIG. In the case of the cover body not including the cover cap 71, the cover body falls by the gap between the ring body 80 and the top wall portion 32 of the mounting cap 10.

Therefore, the relative positional relationship of the cover body 16 with respect to the pressing head 14 can be made different from the state before the first weakening portion 81 is broken (the state shown in FIG. 1). Therefore, based on the change in the relative positional relationship of the cover body 16 with respect to the pressing head 14, whether or not the pressing head 14 is loosely screwed and opened can be more easily determined visually.

Further, when the pressing head 14 and the stem 11 are located at the descending end position P1, the mounting cap 10 is attached to the mouth portion 5 of the container body 2 in the second rotation direction while the cover body 16 is attached, for example. Even if a rotational force for rotating the M2 acts on the mounting cap 10, it is possible to determine whether or not the cap is opened.

Specifically, when the mounting cap 10 is rotated in the second rotation direction M2 with respect to the mouth portion 5 of the container body 2, the projection piece 43 is locked from below the annular projection 7, and the sealing ring 40 Is restricted from moving upward, the cap body 30 moves upward with respect to the sealing ring 40 as the mounting cap 10 rotates. Therefore, it is possible to apply a stress to the connection weakening portion 41 to break the connection weakening portion 41.

Therefore, it is possible to easily determine whether or not the mounting cap 10 is opened by the rotational force in the second rotation direction M2 acting on the basis of the presence or absence of breakage of the connection weakening portion 41. That is, by visually recognizing that the sealing ring 40 is integrated with the cap body 30 without breaking the connection weakening portion 41, it is possible to recognize that the “sealing” is appropriate.
Further, the seal ring 40 may be separated from the cap body 30 and fall onto the shoulder 4 of the container body 2 when the connection weakening portion 41 is broken. In this case, whether or not the seal ring 40 is opened can also be determined by visually checking whether or not the seal ring 40 is located on the shoulder portion 4.

Next, when the contents are discharged, for example, an external force is applied to the cover body 16 so as to lift the cover cylinder 70 upward, and the cover body 16 is separated from the pressing head 14 while breaking the first weakened portion 81. .. At this time, by raising a portion of the cover cylinder 70 located below the discharge nozzle 64 upward as indicated by an arrow C in FIG. 2, it is easy to apply an external force to the cover body 16, and the first weakening portion 81 is removed. Easy to break.

When the first weakening portion 81 is broken, the first weakening is performed by rotating the pressing head 14 together with the cover body 16 in the second rotation direction M2 instead of lifting the cover cylinder 70 upward as described above. The part 81 may be broken.

Since the ring body 80 can be separated from the outer casing 52 by breaking the first weakened portion 81, the cover body 16 can be removed together with the ring body 80.

Further, when the cover body 16 is removed together with the ring body 80, the ring body 80 can be circumferentially divided by breaking the second weakened portion 83. Therefore, the ring body 80 can be removed while suppressing the interference of the ring body 80 with the discharge nozzle 64. You can
The second weakened portion 83 may be intentionally broken, and in the process of lifting the cover body 16, the ring body 80 is brought into contact with the discharge nozzle 64 from below to apply an external force to the ring body 80. The second weakened portion 83 may be broken. In the present embodiment, as described above, since at least one of the second weakening portions 83 is arranged in the portion of the ring body 80 located below the discharge nozzle 64, in the process of lifting the cover body 16. It is possible to apply a stress to the second weakened portion 83 to break it.

In any case, since the ring body 80 can be divided in the circumferential direction by the breakage of the second weakened portion 83, the cover body 16 and the ring body 80 can be removed without being affected by the presence or absence of the discharge nozzle 64. As a result, the pressing head 14 can be rotated in the second rotation direction M2 with respect to the restriction cylinder 15, and the screwing of the pressing head 14 on the restriction cylinder 15 can be released.

When the pressing head 14 is unscrewed, the stem 11 and the pressing head 14 are integrally moved upward by the urging force of the coil spring, and are moved to the rising end position P2 shown in FIG.
As a result, the pressing head 14 can be moved to a state in which it can be pressed down, and the contents can be discharged. Specifically, when the push-down head 14 is pushed down and moved downward together with the stem 11, the piston moves downward in the cylinder 20, so that the pressure in the cylinder 20 can be increased. As a result, the content in the cylinder 20 can be supplied into the discharge nozzle 64 and can be discharged to the outside through the discharge hole 13.

When the depression of the depression head 14 is released, the stem 11 and the depression head 14 are restored to the rising end position P2 by the urging force of the coil spring, and the inside of the cylinder 20 becomes a negative pressure, so that the inside of the container body 2 is reduced. The contents of can be sucked up into the cylinder 20. As a result, it is possible to prepare for the next ejection operation by the pressing head 14.

Further, since the first weakened portion 81 is easily broken at the connection portion of the restriction cylinder 15 with the outer cylinder 52, when the cover body 16 and the ring body 80 are removed, the first weakened portion 81 is removed together with the ring body 80. be able to. Therefore, it is possible to prevent the breakage residue of the first weakened portion 81 from remaining on the side of the restriction cylinder 15, improve the appearance, and easily eliminate the unpleasant feel.

As described above, according to the discharge container 1 of the present embodiment, based on the presence/absence of the cover body 16 and the presence/absence of breakage of the first weakening portion 81, the pressing head 14 is loosened or released from the restriction cylinder 15. Therefore, it is possible to easily determine whether the package has been opened.
Further, since the discharge container 1 can be assembled by a simple work of covering the pressing head 14 located at the descending end position P1 with the cover body 16 and fixing it to the ring body 80, it is possible to suppress an increase in the number of assembling steps. Therefore, the discharge container 1 having excellent assembling workability can be obtained.

Further, since the cover body 16 is formed in a topped cylinder shape having the cover cylinder 70 and the cover cap 71, the pressing head 14 is covered by being protected from the radially outer side and the upper side. Therefore, it is possible to effectively prevent the pressing head 14 from being loosened and operated before the cover body 16 is removed. Further, since the cover body 16 covers and protects the push-down head 14 from the outside and the upper side in the radial direction, for example, dust or the like is unlikely to adhere to the ejection holes 13, and the push-down head 14 can be more easily maintained cleanly.

In the above embodiment, as shown in FIG. 7, for example, an operation piece 75 bulging outward may be formed in a portion of the flange piece 72 of the cover body 16 located below the discharge nozzle 64. I do not care. By doing so, for example, the cover body 16 can be lifted while pinching the operation piece 75 with a fingertip, and an external force such as twisting can be easily applied to the cover body 16.
Therefore, the work of removing the cover body 16 can be performed more easily.

(Second embodiment)
Next, a second embodiment of the discharge container according to the present invention will be described. In addition, in this 2nd Embodiment, the same code|symbol is attached about the same part as the component in 1st Embodiment, and the description is abbreviate|omitted.

As shown in FIGS. 8 and 9, the discharge container 90 of the present embodiment includes a cover body 91 having a bottom cover 93 that is openably and closably connected to the cover cylinder 70 via a hinge portion 92.
The bottom cover 93 protrudes outward from the outer peripheral edge portion of the bottom plate portion 94 and the cup-shaped bottom plate portion 94 that covers the discharge nozzle 64 of the pressing head 14 from below, and the discharge nozzle 64 of the flange piece 72. A bottom flange piece 95 that overlaps from below with respect to a flange piece 72 formed at the lower end of the head cylinder 61 that is surrounded from the outside in the radial direction is provided.

In the case of the cover body 91 configured as described above, after the cover body 91 is covered with the pressing head 14 in a state where the bottom cover 93 is opened, the bottom cover 93 is rotated around the hinge portion 92 to discharge. It is located below the nozzle 64. Accordingly, the discharge nozzle 64 can be covered from below by the bottom plate portion 94, and the bottom flange piece 95 can be overlapped with the flange piece 72 from below.
Then, the bottom flange piece 95 and the flange piece 72 are fixed to each other in, for example, a spot-shaped fixing region 82. Accordingly, the bottom cover 93 can be integrally connected to the cover cylinder 70.

The bottom flange piece 95 and the flange piece 72 may be fixed to each other almost at the same time as the flange piece 72 and the ring body 80 are fixed to each other, or may be performed at a timing before and after.

According to the discharge container 90 of the present embodiment, the lower side of the discharge nozzle 64 can be closed by the bottom cover 93, so that the entire pressing head 14 can be covered and protected by the cover body 91, and the cover body 91 can be protected. It is possible to effectively prevent the pressing head 14 from being rotated in the loosening direction without being removed. Furthermore, it is easy to effectively prevent dust and the like from adhering to the pressing head 14.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in each of the above-described embodiments, the mounting cap 10 includes the sealing ring 40, but the sealing ring 40 is not essential and may not be provided.

Although the pressing head 14 including the ejection nozzle 64 has been described as an example, the ejection nozzle 64 is not essential and may not be provided. In this case, after breaking the first weakened portion 81, the ring body 80 and the cover bodies 16 and 91 can be removed without considering the interference with the discharge nozzle 64.

Furthermore, although the case where the second weakened portion 83 is provided in the ring body 80 has been described as an example, the second weakened portion 83 is not essential and may not be provided. Even in this case, the cover body can be removed from the push-down head 14 including the ejection nozzle 64.
However, by providing the second weakening portion 83 in the ring body 80 so that the ring body 80 can be divided in the circumferential direction, the cover from the general pressing head 14 including the discharge nozzle 64 as in the above embodiment. It is possible to smoothly remove the bodies 16 and 91. Further, when the second weakening portion 83 is provided, for example, the ring body 80 can be divided in the circumferential direction at any position, so that it is possible to cope with the pressing heads 14 having various shapes. Since it is unlikely to be affected by the direction of the discharge nozzle 64, it is possible to deal with various pressing heads, which is preferable.

Further, in each of the above-described embodiments, the outer cylinder 52 of the restriction cylinder 15 and the ring body 80 are connected via the first weakening portion 81, but when the ring body 80 is connected to the restriction cylinder 15. It is not limited to. For example, the ring body 80 may be connected to the mounting cap 10 or the mouth portion 5 of the container body 2 via the first weakening portion 81.

Furthermore, in each of the above-described embodiments, the top-end cylindrical cover bodies 16 and 91 provided with the cover cap 71 have been described as an example, but the cover cap 71 is not essential and may not be provided. ..
Even in this case, when the first weakened portion 81 is broken, the cover cylinder 70 can be dropped together with the ring body 80. For example, the ring body 80 and the cover cylinder 70 can be dropped by the gap between the ring body 80 and the top wall portion 32 of the mounting cap 10. Therefore, the relative positional relationship of the cover cylinder 70 with respect to the pressing head 14 can be made different from that in the state before the first weakening portion 81 is broken, so that the relative position of the cover cylinder 70 with respect to the pressing head 14 is relatively large. Based on the change in the positional relationship, it is possible to easily determine whether or not the pressing head 14 is loosely screwed and opened.

In addition, it is possible to appropriately replace the constituent elements in the above-described embodiment with surrounding constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

O... Container axis (stem axis)
P1... Falling end position P2... Ascending end position 1, 90... Discharge container 2... Container body 5... Container body mouth 10... Mounting cap 11... Stem 12... Pump 13... Discharge hole 14... Depressing head 15... Restriction cylinder 16 , 91... Cover body 60... Pressing head top wall portion 64... Discharge nozzle 70... Cover cylinder 71... Cover cap 80... Ring body 81... First weakening portion 83... Second weakening portion

Claims (4)

A container body in which the contents are stored,
A mounting cap mounted on the mouth of the container body,
A pump having a stem inserted inside the mounting cap so as to be movable downward while being biased upward;
A pressing head mounted on the upper end of the stem and having a discharge hole for discharging contents,
A restriction tube to which the pressing head located at the descending end position is screwed, and restricts upward movement of the pressing head and the stem,
A cover body that covers the pressing head,
The member of any one of the mouth of the container body, the mounting cap, and the restriction tube is surrounded from the outside in the radial direction and is connected to the member via a rupturable first weakening portion. The ring body is arranged,
The cover body includes a cover tube that surrounds the pressing head from the outside in the radial direction ,
A discharge container in which a lower end portion of the cover cylinder is fixed to the ring body from above. The discharge container according to claim 1,
The cover body includes a cover cap that closes the upper end opening of the cover cylinder and covers the top wall portion of the pressing head from above.
A discharge container in which a constant gap is formed in the central axis direction of the stem between the cover cap and the top wall portion. The discharge container according to claim 1 or 2,
The push-down head includes a discharge nozzle that projects outward in the radial direction and has the discharge hole formed at the tip.
A rupturable second weakened portion is formed on the ring body,
The said ring body is a discharge container which can be divided|segmented in the circumferential direction by fracture|rupture of the said 2nd weakening part. The discharge container according to any one of claims 1 to 3,
The said ring body is a discharge container which surrounds the said regulation cylinder from a radial direction outer side, and is connected with the said regulation cylinder via the said 1st weakening part.

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